Sectional anode



Patented Aug. 11, 1925.

UNITED" STATES PATENT, OFFICE..-

.VAN WHTKIJE TODD, OF MILLBURN, NEW JERSEY, ASSIGNOR TO THE HANSON & VAN

WINKI'E COMIPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

saorromu. mom.

Application filed December'20, 1928. Serial No. 681,788.

To all whom it may concern:

Be it known thatI, VAN WINKLE TODD, a citizen of the United States, anda resident of Millburn, county of Essex, State of New Jersey, haveinvented certain new and useful Improvements in Sectional Anodes, ofwhich the following is a specification.

*This invention relates to sectional anodes for use in electroplatingapparatus and has for its object the production of anode holders andsections that will be more convenient and more eificient than thoseheretofore used. The invention comprises an in-. soluble anode backboneor stem having a dove-tail or equivalent wing or socket upon which anodesections may be strung, the

latter having corresponding dove-tail recesses or projections adapted toengage with the corresponding part of the anode stem whereby they may beeasily applied, securely held in place when applied and formindividually good pressure contact with the anode stem.

In the accompanying drawings:

Figure 1 represents an anode stem 'or backbone.

Figure 2 represents; a transverse section thereof.

Figures 3, 4, 5, 6 and? are forms shown in cross-section.

Figures 8, 9, 10 and 11 show forms anode sections.

Referring to Figure 1 of the drawings, I have shown an anode stem orbackbone 1 which should be made of insoluble material such as lead or ofmetal coated with lead. A hook 2 enables the stem to be hung onto ananode rod 3. Extending the length of the stem is a dove-tail wing 4 (seeFigure alternative ,2) and such wings may be either on both may be madein the body shown in Figures 5, 6 and 7.

sides. of the stem, as shown in Figure 2,1or on one side only, as shownin Figure 3.- The wing may also take the form shown in Figure 4 of arounded dove-tail. n

Instead of a rib or wing, the dove-tail of the stem, as

In Figures 8, 9, 10 and 11, there are shown various .forms of sectionalanodes adapted to be strung upon the anode stein. These, anodes, are, ofcourse, made of soluble metal,

but, as shown in Figure 11, the dove-tail part may be. made ,ofinsoluble metal and cast into the anode section so as to form anintegral part thereof.

When such sections are strung upon the anode stem, the lower one mayrest upon the foot 5 of the stem and the other anode sectionssuperimposed thereon. Owing to thecenter of gravity of the sectionalanodes being to one side of their point of support, each section willindividually clamp the anode stem so, that any corrosion or accumulationof salt or dirt between the sections will not interfere with theirelectrical contact with the stem itself. This will be particularly thecase with a section such as shown in Figure 11, where the dove-tail partis of insoluble metal so that the contact with the anode stem will notin any way be affected by the dissolution of the soluble part of thesection.

The sections shown in Figures 9 and 11 may be inserted at any pointalong the anode stem. The thickness of the dove-tail extension beingless than the width of the narrow part of the dove-tail slot enables asection of this character to be ifiserted vertically and then turnedinto a horizontal position so that they become locked in place.

I claim 1. A sectional anode comprising in combination, an insolubleanode stem having a dove-tail holder rib and a plurality of separableanode sections adaptedyto engage with and beheld by the said dove-tailholder in any desired position.

2. The combination with -an anode hold-, I

ing stem of'insoluble metal having 'a dovetail holding portion of asectionalanode of soluble metal with a dove-tail portion of insolublemetal cast therein, said dove-tail extension being adapted to engage the(love.

tail of the anode stem.

3. In combination, an anode stem of in-.

soluble metal having a dove-tail holder having a recessed dove-tailholding groove and detachable soluble anodes having extensions adaptedto freely pass into the said dove-tail groove when in one. position ndto lock therein when turned to another posit-ion.

VAN WINKLE TODD.

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